Citace podle APA (7th ed.)
Hudson, J. C. (2002). Across this land: A regional geography of the United States and Canada. Johns Hopkins University Press.
Citace podle Chicago (17th ed.)
Hudson, John C. Across This Land: A Regional Geography of the United States and Canada. Baltimore: Johns Hopkins University Press, 2002.
Citace podle MLA (9th ed.)
Hudson, John C. Across This Land: A Regional Geography of the United States and Canada. Johns Hopkins University Press, 2002.
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